Another day, another daily dose of Game of Thrones season 4 casting news. Believe it or not, they're actually bringing back someone who was killed off in season 3 -- but it's definitely not who you think! But first, the role of wildling leader Styr, the Magnar of Thenn, will be played by Joseph Gatt, and they have recast Tommen Baratheon, replacing him with an older boy, as he'll most likely have a meatier role in season 4.

Callum Wharry played Tommen in seasons 1 and 2, and he won't be back for season 4. Dean-Charles Chapman will take over -- though this actor played Martyn Lannister and was brutally murdered by the Karstarks in season 3. Guess they're hoping no one will recognize him?

So let's speculate what we're going to see from these characters, based offA Storm of Swords, okay? There are BOOK SPOILERS AHEAD. You already know the Internet is dark and full of LOTS AND LOTS OF SPOILERS.

So let's start off with badass Styr, Magnar of Thenn. Why are the names in Game of Thrones so freakin' cool? Anyway, he is a wildling leader, the leader of the Thenn. The book describes him as tall, skinny, and he doesn't have ears. Also, Joseph is perfect because he's clean shaven and bald, with gray eyes. He's a tough ruler but his men are extremely loyal to him. He once allied with Mance Rayder against the Others.

Mance plans an assault against the Wall, and Styr, his co-commander Jarl, and a group of his men went ahead to try to take Castle Black from behind ... but Jon Snow was able to warn the Night's Watch of the attack. Styr and his men die when they're caught in a trap as they're climbing the Wall. Should be a very exciting scene to watch!

Tommen, on the other hand, gets a bigger role because ... he becomes the king! That's right, his older brother, Joffrey, kicks the bucket at his own wedding, and Tommen is next in line. There are also plans to have little Tommen marry Margaery Tyrell in place of Joffrey. He also enjoys putting royal stamps on all the documents. Gotta love Tommen.

And RIP, Joffrey:

What do you think of Joseph Gatt as Styr? Think you would have recognized Martyn?